Improvement in cultivators



PATEN 'r' JAMES M. ELDER, 0F INDIANAPOLIS, INDIANA.

MPROVEM E'NT IN CULTl-VATORS.

Specification forming part of Letters Patent No. 222,39 1, dated December 9, 1879; application filed a y y August 3Q, 1879.

To all whom it concernll a Be it known that I, JAMiEs M. ELDER, of Indianapolis,in the county ofMarion'andState of Indiana, have invented a new and'useful Improvement in Cultivators, of which the following is a specification, reference being had to the accompanying drawings. a l

. The object of my invention is to provide a system of newly constructed and arranged *de- V1068 for keeping the shovels of the plow in the ground; also, to facilitate the lifting of the shovels when .it is desired to raise them; also, to relieve the Weight of the tongue from the horses neck. I p

I My invention consists in the new construction and arrangement of devices; also, in the.

spective view of one side of a cultivator embodying my improved apparatus. Fig. 2 is a front elevation of the same.

Fig. 3 is a side, and Fig. 4. is a top, view of the coupling dc vice. Figs. 5 and 6 represent a top and side elevation of the forked bracket, and Fig. 7 is a sectional view of the cupthat supports the lower end of the spring.

A represents the wheel or the plow-sulky, which is mounted on the axleB. The axle B forms part of, or is secured to, the arch-bar O,' in the usual manner.

:T is part of the tongue-brace, which is provided with a hook, U, to hangthe plow-beams on, and is secured to the arch O also, in the usual manner. The plow-shovels X X are also attached to the plow-beams W W, and

provided with the plow-handle V, in the usual manner.

To the arch-beam O is attached a downwardprojecting arm, E, the lower end of which is connected with the downwardprojecting part G of the arch-beam by a bolt or shaft, Y, on

which is mounted the pipe or cylinder D,'which is free to rotate on the bolt Y. To the pipeD is pivoted the forked coupling device F by the pin a. 7

shown in Figs. 1 and 2. i It is obvious that the bar E may be dis- To the rear end of the coupling F the plow beams W W are secured, as shown in Fig. 1. On one side of the coupling F is a lug or boss, G, having a serrated face, 8, in which fits the Eserrated face of the extension part G. The outer end of the part G is provided with a ver-v tical groove, m, and an eyebolt, mas shown in Figs. 3 and 4.

The rod H is securely clamped in the groove m by the eyebolt n, as shown in Fig. 1. The l upper end of the rod H is hinged or pivoted at d to the rod I, and the rod I is provided with a cup-shaped piece, J, Fig. 7, which is securely riveted to the rod in the position shown in Fig. 1. The lower end of the spring K rests in the part- 1 of the cup, and therod I passes through the hole t. The rod I extends upward through the spring K, above the arch-beam G, as shown. 1

The bracket 0 is constructed similar to thatshown in Fig. 5that is, with the arms g g projecting forward from one side,-in which is pivoted the universal joint, composed of the parts L L, with joint-arms pivoted at m. The

lower part, L, is also made cup-shaped, to receive the upper end of the spring K and hold The bracket 0 is securely fa'stit in position. ened to the arch-beam O, or to the arch-beam and auxiliary arm E, by clamps R r, 'or by any other ordinary means, such ,as bolts, &c., as

pensed with, and the bolt Y form a stud projecting from the arch-beam O to receive the pipe D; also, the bracket 0 might be secured to the arch-beam, and support the spring device independent of the bar E. l

The operation of my improved device is as follows, to Wit: When the plows are in theposition shown in Fig. 1 thespring E 'tends to force the plows into the ground, thedegree of force being regulated by the positionin which thei serrated lugs G G occupy on. thecoupling F. Thus, if the lugs G be set back in the holes t, Fig. 3, the pressure exerted. on 1 the shovels will be greater than if the lugs were in the position shown.

If it is desired to raise the shovels, as in moving the cultivator from place to place, the handle V is raised, at the same timetipping Fawn;

the upper end of the rod H forward in flOlllL of the axle, thus forming an angle with the rod I. The spring K then presses down on the rod H, helping to raise the shovels, thus rendering them easier to be lifted and hung on the hook U. The togglejoint, composed of the parts L L, with joint m, permits the adjustments of the bracket 0 to any desired point on the arch-beam relative to the position of the plowbeams on the axle. Thus the device can be attached to any ordinary cultivator, rake, or other implements.

I am aware that prior to the date of my in-' vention eultivators had been provided with springs which acted with a lifting action upon the beams, and with increasing force as the beams ascended; and I am also aware that springs had been so applied as to serve the double purpose of holding the beams down when in action, and of lifting or assisting to lift them when they were raised above an operative position, and therefore I do not claim said features, broadly; but I am not aware that any one has hitherto constructed and applied a spring in the manner shown in the accompanying drawings, and

What I claim, therefore, is-

1. The adjustable bracket 0, combined with the universal joint I1 L, spring K, cup J, rod I, and coupling G, as and for the purpose specified.

2. In combination with the arched axle of a I cultivator, the bracket 0, with arms g g, the universal joint L L, the spring K, the cup J, the red I, the rod- H, the serrated lugs G G, the coupling F, and plow-beams W W, as and for the purpose specified.

3. In combination with the coupling F of a 

